Finding the Fourth Proportional to 37,156.22, 51,275.58 and 20,389.22

Step by Step Solution

1. Step 1: Write the proportion equation
   37,156.22 : 51,275.58 = 20,389.22 : x
2. Step 2: Convert to fraction form
   37,156.22/51,275.58 = 20,389.22/x
3. Step 3: Cross multiply
   37,156.22x = 51,275.58 × 20,389.22
4. Step 4: Simplify right side
   37,156.22x = 1,045,469,055.38
5. Step 5: Solve for x
   x = 1,045,469,055.38/37,156.22
6. Step 6: Final answer
   x = 28,137.12